I'm running 6" independent risers on my chopper build. Had a ton of flex and my rubber bushings weren't even rotten. These bushings drop right in and eliminate the flex completely. They look great, too! Well worth it.
real make a huge difference in the feed back & feel thru the handle bars. i added a set of alloy renthal flat bars to my cafe special and very little 'buzz' from the 360 degree shaker. a 'must' fit for the canyon carvers.